Driver: -L should be marked as RenderJoined, the linker doesn't like "-L FOO".

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105765 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index 8e3ee84..2b9aff6 100644
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -128,7 +128,7 @@
 def H : Flag<"-H">;
 def I_ : Flag<"-I-">, Group<I_Group>;
 def I : JoinedOrSeparate<"-I">, Group<I_Group>;
-def L : JoinedOrSeparate<"-L">;
+def L : JoinedOrSeparate<"-L">, Flags<[RenderJoined]>;
 def MD : Flag<"-MD">, Group<M_Group>;
 def MF : JoinedOrSeparate<"-MF">, Group<M_Group>;
 def MG : Flag<"-MG">, Group<M_Group>;